About PDFly
We build free, private PDF tools. Most run entirely in your browser — no servers that see your files. A few AI-powered tools securely process text through a trusted AI provider to work their magic. No accounts. No subscriptions. Just tools that work.
Privacy First
Your documents are personal. Every core PDF tool — merge, split, compress, convert, and more — is engineered so files are processed entirely in your browser and never touch our servers. Our AI-powered tools (chat, summarize, translate, and similar) are the one exception: they securely send extracted text to our AI provider to generate results.
Free to Use
No paywalls, no freemium tricks, no watermarks. PDFly is ad-supported to stay free. Core tools have no usage cap; AI tools share a daily capacity across all users.
Blazing Fast
No upload round-trips. Processing happens locally in your browser, so there's no wait for a file to travel to a server and back.
Works Everywhere
Fully responsive design works on desktop, tablet, and mobile. Light and dark modes. No app install needed.
Built With Open Source
PDFly's core PDF tools are built on open-source libraries that run in the browser. Our AI-powered features additionally use a third-party AI provider to generate results.
pdf-lib
Create, modify, and read PDF documents in any JavaScript environment.
JSZip
Create, read and edit .zip files in JavaScript. Used for batch download.
mammoth.js
Convert .docx Word files to HTML/text. Powers Word to PDF conversion.